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Llanes Estrada, Felipe José and Dobado González, Antonio and Torres Rincón, Juan M. (2013) Shear and bulk viscosities of a photon gas at low temperature. Physical Review D, 88 (5). ISSN 1550-7998
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Official URL: http://dx.doi.org/10.1103/PhysRevD.88.053006
Abstract
We explore the viscosities of a photon gas by means of the Euler-Heisenberg effective theory and quantum electrodynamics at zero electron chemical potential. We find parametric estimates that show a very large shear viscosity and an extremely small bulk viscosity (reflecting the very weak coupling simultaneously with a very approximate dilatation invariance). The system is of some interest because it exemplifies very neatly the influence of the breaking of scale invariance on the bulk viscosity.
| Item Type: | Article |
|---|---|
| Additional Information: | © 2013 American Physical Society. |
| Uncontrolled Keywords: | Astronomy, Astrophysics, Physics, Particles, Fields |
| Subjects: | Sciences > Physics |
| ID Code: | 23583 |
| Deposited On: | 21 Nov 2013 13:10 |
| Last Modified: | 20 Apr 2018 18:20 |
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